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use std::io::prelude::*;
//use std::io::BufWriter;
use std::io::{Error};
use std::result::Result;
use std::net::TcpStream;
use std::vec::Vec;
extern crate log;
// use log::{info, warn, debug};
use crate::protocol::message;
use crate::protocol::error::ErrorKind;
pub struct Client {
tcp_stream: TcpStream,
pub address: &'static str,
pub port: u32,
pub tls: bool,
pub compression: bool,
}
impl Client {
pub fn login(&mut self, user: &'static str, pass: &'static str, client: message::ClientInit) {
use crate::protocol::message::handshake::{HandshakeDeserialize, HandshakeSerialize, HandshakeQRead, VariantMap};
use crate::protocol::message::handshake::{ClientInitAck, ClientLogin, ClientLoginAck, SessionInit};
self.tcp_stream.write(&client.serialize().unwrap()).unwrap();
let mut buf: Vec<u8> = [0; 2048].to_vec();
let len = VariantMap::read(&mut self.tcp_stream, &mut buf).unwrap();
buf.truncate(len);
let res = ClientInitAck::parse(&buf).unwrap();
println!("res: {:?}", res);
let login = ClientLogin {user: user.to_string(), password: pass.to_string()};
self.tcp_stream.write(&login.serialize().unwrap()).unwrap();
let mut buf: Vec<u8> = [0; 2048].to_vec();
let len = VariantMap::read(&mut self.tcp_stream, &mut buf).unwrap();
buf.truncate(len);
let _res = ClientLoginAck::parse(&buf).unwrap();
let mut buf: Vec<u8> = [0; 2048].to_vec();
let len = VariantMap::read(&mut self.tcp_stream, &mut buf).unwrap();
buf.truncate(len);
let res = SessionInit::parse(&buf).unwrap();
println!("res: {:?}", res);
}
}
pub fn connect(address: &'static str, port: u32, tls: bool, compression: bool) -> Result<Client, Error> {
use crate::protocol::primitive::deserialize::Deserialize;
//let mut s = BufWriter::new(TcpStream::connect(format!("{}:{}", address, port)).unwrap());
let mut s = TcpStream::connect(format!("{}:{}", address, port)).unwrap();
// Set Features
let mut init: Vec<u8> = vec![];
let mut handshake: u32 = 0x42b33f00;
if tls {
handshake |= 0x01;
}
if compression {
handshake |= 0x02;
}
let mut proto: u32 = 0x00000002;
let fin: u32 = 0x80000000;
proto |= fin;
init.extend(handshake.to_be_bytes().iter());
init.extend(proto.to_be_bytes().iter());
s.write(&init)?;
#[derive(Debug)]
struct ConnAck {
flags: u8,
extra: i16,
version: i8
}
impl Deserialize for ConnAck {
fn parse(b: &[u8]) -> Result<(usize, Self), ErrorKind> {
let (flen, flags) = u8::parse(b)?;
let (elen, extra) = i16::parse(&b[flen..])?;
let (vlen, version) = i8::parse(&b[(flen+elen)..])?;
return Ok((flen+elen+vlen, Self {flags, extra, version}));
}
}
let mut buf = [0; 4];
s.read_exact(&mut buf)?;
let (_, val) = ConnAck::parse(&buf).unwrap();
println!("Received: {:?}", val);
let server: Client = Client {
tcp_stream: s,
address: address,
port: port,
tls: tls,
compression: compression,
};
Ok(server)
}
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